869964449456 has 40 divisors (see below), whose sum is σ = 1738874788224. Its totient is φ = 421328010240.

The previous prime is 869964449449. The next prime is 869964449461. The reversal of 869964449456 is 654944469968.

It is a Harshad number since it is a multiple of its sum of digits (74).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162905 + ... + 3426936.

Almost surely, 2^869964449456 is an apocalyptic number.

It is an amenable number.

869964449456 is a deficient number, since it is larger than the sum of its proper divisors (868910338768).

869964449456 is a wasteful number, since it uses less digits than its factorization.

869964449456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590109 (or 6590103 counting only the distinct ones).

The product of its digits is 1612431360, while the sum is 74.

The spelling of 869964449456 in words is "eight hundred sixty-nine billion, nine hundred sixty-four million, four hundred forty-nine thousand, four hundred fifty-six".